Cross-flow fan



FIG. 1 is a top, right perspective view of a cross-flow fan in accordance with our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is an enlarged cross-section view of a single fan blade thereof. 

The ornamental design for a cross-flow fan, as shown and described. 